command.py

#!/usr/bin/env python
# command.py : A simple command prompt
# [2012.08.02] - Mendez: cleaned up using my libraries
# [2012.01.10] - SJK: original version
import re, readline, time
from lib import argv
from lib.communicate import Communicate
from clint.textui import colored,puts


# Initialize the args
args = argv.arg(description='Simple python grbl command prompt for debuging the GRBL')

# get a serial device and wake up the grbl, by sending it some enters
with Communicate(args.device, args.speed, timeout=args.timeout,
                 debug=args.debug,
                 quiet=args.quiet) as serial:

  # now we send commands to the grbl, and wait waitTime for some response.
  while True:
    # Get some command
    try:
        x = raw_input('GRBL> ').strip()
        if x.lower() in ['q','exit','quit']: break
        if x.lower() in ['r','reset']: serial.sendreset()
        if x in ['~']: serial.run('~\n?')
        # run it if is not a quit switch
        serial.run(x)

    except KeyboardInterrupt:
        puts(colored.red('Emergency Feed Hold.  Enter "~" to continue'))
        serial.run('!\n?')